Patents by Inventor Youngrae JUNG

Youngrae JUNG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cavitator system for suppressing cavity buoyancy effect and method thereof
    Patent number: 10486773
    Abstract: A cavitator system for suppressing a cavity buoyancy effect and a control method thereof are provided. The cavitator system for suppressing a cavity buoyancy effect includes a cavity generating unit disposed at a front portion of an underwater vehicle and generating super-cavity, a pneumatic hose transferring compressed air stored in a compressed air tank to the underwater vehicle, a ventilation module positioned at a tail portion of the underwater vehicle and including at least one hole ventilating compressed air transferred through the pneumatic hose vertically downwards, and a controller sensing rise of a cavity tail portion and a change in posture of the underwater vehicle when a super-cavity is generated and ventilating compressed air through the ventilation module such that a vertically downward lift is generated at the cavity tail portion.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: November 26, 2019
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Minjae Kim, Youngrae Jung, Kurnchul Lee
  • CAVITATOR SYSTEM FOR SUPPRESSING CAVITY BUOYANCY EFFECT AND METHOD THEREOF
    Publication number: 20190322335
    Abstract: A cavitator system for suppressing a cavity buoyancy effect and a control method thereof are provided. The cavitator system for suppressing a cavity buoyancy effect includes a cavity generating unit disposed at a front portion of an underwater vehicle and generating super-cavity, a pneumatic hose transferring compressed air stored in a compressed air tank to the underwater vehicle, a ventilation module positioned at a tail portion of the underwater vehicle and including at least one hole ventilating compressed air transferred through the pneumatic hose vertically downwards, and a controller sensing rise of a cavity tail portion and a change in posture of the underwater vehicle when a super-cavity is generated and ventilating compressed air through the ventilation module such that a vertically downward lift is generated at the cavity tail portion.
    Type: Application
    Filed: September 17, 2018
    Publication date: October 24, 2019
    Inventors: Minjae KIM, Youngrae JUNG, Kurnchul LEE